KR20140098646A - Gas torch - Google Patents

Abstract

The present invention relates to a gas torch with a liquefied gas fuel leak preventing means and, more specifically, to a gas torch for generating a flame by evaporating the liquefied fuel such as butane gas and by being fastened to a small gas container to be used as fuel for the flame. The gas torch with the liquefied gas fuel leak preventing means can provide easy connection of the container and prevent leakage of gas fuel with being firmly fastened by adopting a link member converting rotational force of a rotating lever to elevating movement of a lift body, wherein the lift body pressurizes a clogging piece outside to fix the clogging piece to a fixing groove of the gas container.

Description

TECHNICAL FIELD [0001] The present invention relates to a gas torch having liquefied gas fuel leakage preventing means,

The present invention relates to a gas torch with liquefied gas fuel leakage preventing means,

More particularly, to a gas torch capable of uniformly spraying a butane gas or a small gas container and flame uniformly in any direction.

Particularly, the liquid fuel leakage prevention means composed of the narrow first and second vaporization portions in which the cross-sectional area of the passage is reduced rapidly can be provided, and the flame can be uniformly ejected, and the flame prevents irregular incomplete oxidation To a gas torch having a liquefied gas fuel leakage preventing means for lowering the work risk of the user and improving the working efficiency.

Generally, gas torches are used extensively by using portable butane gas in various fields such as burning firewood, melting sea-work of iron pipes, welding, welding and so on. These gas torches are easy to carry and easy to use, so that users can conveniently use them.

The following technologies are known with the prior art related to the gas torch.

Korean Patent Laid-Open Publication No. 10-2012-0013697 (registered on Dec. 11, 2009) relates to a "portable gas torch with improved safety", wherein when a portable gas container is combined with a portable gas container, And a second nozzle formed of a first nozzle and a second nozzle, wherein the liquid gas generated in the space between the first nozzle and the second nozzle flows in the direction of the furnace The present invention relates to a portable gas torch, and more particularly, to a portable gas torch having improved safety with a nozzle bundle capable of preventing a phenomenon in which a liquid gas is injected into a second nozzle during switching and a uniform flame is not maintained and rapidly increased.

However, since the liquid space gas is prevented from flowing into the first nozzle or the second nozzle due to the space for liquid gas escaping between the first nozzle and the second nozzle by the nozzle bundle, If it continues for a long time, it accumulates continuously and consequently clogs the first injection nozzle, or is discharged to the second injection nozzle, causing incomplete combustion.

Further, the liquid gas formed in the gas escape space moves to the gas escape space when the gas is directed downward, but a part of the liquid gas can flow into the second nozzle, which inconvenient incomplete combustion.

In addition, a packing for preventing the leakage of the liquid gas during the connection of the first nozzle orifice and the second nozzle orifice is further added, thereby increasing the unit price of the product and weakening the market competitiveness of the product. The liquid gas is leaked and the user is exposed to the risk during operation.

The present invention relates to a portable gas torch, and more particularly, to a portable gas torch, which includes a torch connection portion (not shown) coupled to an upper portion of a portable gas container such as a butane gas container, And a second nozzle provided at an upper end of the gas inlet pipe connected to the upper portion of the torch main body having a gas control valve for regulating a gas discharge amount at one side, And a first nozzle having a predetermined gas outlet formed at the lower end of the combustion tube coupled to the upper end thereof. The gas ejected from the portable gas canister is guided to the gas inlet pipe, passes through the second nozzle at the upper end of the gas inlet pipe, So that a constant amount of gas is always supplied to the combustion tube irrespective of the direction of the combustion tube.

However, since the space between the first nozzle and the second nozzle is further provided, the gas flowing into the space causes a vortex phenomenon, so that the back pressure of the gas is applied to the inside of the second nozzle, There is a problem to occur.

In addition, the space portion is too narrow to sufficiently accommodate the amount of gas rapidly ejected and can not be stably discharged to the first nozzle.

In addition, Patent Registration No. 10-1045873 (date of registration June 27, 2011) relates to a "torch for improving productivity and cost reduction", comprising a main body including a gas inflow portion and a discharge portion, A hearth connected to the main body; A gas supply pipe for supplying gas from an inlet portion of the main body to a discharge portion and having the crater and the overlapping portion; And coupling means for fixing the both ends of the gas supply pipe to the inlet and outlet of the main body, the coupling means being simple in structure and easy to assemble, It is possible to assure the assembling work of the gas supply pipe and the main body by introducing the double coupling structure and to assure the reliability of the assembly and to improve the productivity by the improved assembling property and to reduce the cost The present invention relates to a torch for enhancing productivity and decreasing cost, which can enhance the satisfaction of consumers by supplying products.

However, the above-mentioned patent has a problem that the temperature of the flame is directly transferred to the support so that the surface temperature of the support increases and the temperature of the air outlet is lowered.

Particularly, in the support of the firebox, end portions of the fireplaces where the flame is sprayed are heated up and oxidized together with the outside air to weaken the durability. In addition, after the work is finished, a large amount of grinding is generated and the carbonized powder is blown away when stored, resulting in contamination of the air inside the user's work area and weakness of the durability of the torch.

Patent Registration No. 10-0129629 (registered on November 11, 1997) relates to a "connection adapter for a butane gas container", in which a positioning piece fitted into a cutout groove of a butane gas container is projected to the lower end side of a connection body A plurality of tongue pieces formed with a latching jaw formed on the support ring of the butane gas container are formed downward on the support plate so as to be located inside the support ring and a cam fixed to the connection body on the inner side of the support ring And the supporting ring is hooked to the engaging jaw so that the operation for binding and disassembling the connecting body can be easily performed and can be quickly attached and detached so that anyone who has no expert knowledge can use it It is an invention.

However, the connection body capable of binding and disassembling by holding and holding the container of the above-mentioned patent is complicated in the structure of the components, resulting in an increase in the manufacturing cost and a low price competitiveness.

Accordingly, the present invention has been made to solve the above-mentioned problems,

The flow rate of the gas is controlled by using the displacement of the cross-sectional area of the passage in the gas passage so that the liquefied fuel leaks to the finally injected gas to prevent incomplete oxidation or amplification of the intensity of the flame, And a gas torch having liquefied gas fuel leakage preventing means constituted by a vaporizing portion.

In order to inject a uniform and stable flame, the present invention is characterized in that it has a wide portion at the front end and a through hole having a reduced cross-sectional area connected to the wide portion so as to intermit the amount of gas ejected according to the flow rate and flow rate of the gas And a gas torch having liquefied gas fuel leakage preventing means including a vaporizing portion having a narrow portion.

In addition, the present invention provides a fire extinguishing system comprising: a first protection tube that reduces the loss of a flame to be injected and can supply a thermal power intensively to the inside, and encloses the injection port in a spaced apart form so as to prevent rapid oxidation of a protective pipe formed outside; And a liquefied gas fuel leakage preventing means including a second protective pipe which surrounds the first protective pipe in a spaced-apart manner.

The engaging piece to be fastened to the fixing groove of the gas container is provided with the pressing piece in the outward direction so that the coupling and disconnection with the gas container can be easily performed even if the gas torch is repeatedly used without lowering the coupling force of the fastening means. And a gas torch provided with means for preventing liquefied gas fuel leakage by operating one lifting body through a link member connected to the rotating lever.

According to an aspect of the present invention, there is provided a gas torch including the liquefied gas fuel leakage preventing device according to the present invention,

An adapter coupled to the gas container;

A body connected to the adapter and having a gas communication passage penetrated therethrough; And

A nozzle connected to the gas passageway of the body and having an injection port through which a flame is injected; And

Preventing means formed on the gas passage to prevent leakage of the liquefied gas fuel; , ≪ / RTI >

And the liquefied gas fuel leakage preventing means is constituted by one or more vaporizing portions which are provided on the gas communication passage and whose sectional area of the passage is reduced rapidly.

Further, in the gas torch having the liquefied gas fuel leakage preventing means according to the present invention, the vaporizing portion includes a wide portion having a front end and a narrow portion having a through hole having a passage cross-sectional area reduced by a cross- .

In the gas torch with the liquefied gas fuel leakage preventing device according to the present invention, the wide portion of the vaporizing portion is formed with a wide tube which is larger in cross section than the cross-sectional area of the passage of the wide portion.

Further, in the gas torch having the means for preventing liquefied gas fuel leakage according to the present invention, the nozzle may include a first protective pipe spaced around the injection port, and a second protective pipe spaced around the first protective pipe .

The gas torch according to the present invention is provided with a liquefied fuel leakage preventing means composed of one vaporizing portion in which the cross-sectional area of the passage provided in the gas communication passage is reduced so that the liquefied fuel leaks even when the user tilts the gas torch upside down, And the intensity of the flame can be prevented from being suddenly amplified, thereby improving the user's stability of use and work efficiency.

The gas torch according to the present invention is characterized in that the gas torch includes a wide portion at the front end and a vaporization portion including a narrow portion having a penetration hole connected to the wide portion and having a reduced cross section of the passage, It is possible to uniformly supply the flow rate of the gas even if the gas torch is inverted or inclined in any direction by forming a wide tube having a cross sectional area larger than the cross sectional area so that the liquefied gas is not discharged and the flame is uniformly and continuously injected, Efficiency,

In addition, even if the amount of gas ejected from the first vaporizing portion supplied to the inside of the torch is increased or decreased, the gas ejected from the second vaporizing portion does not cause liquefaction, thereby exhibiting a uniform and uniform flame spraying function. .

The gas torch having the liquefied gas fuel leakage preventing means according to the present invention introduces a link member for raising and lowering the ascending / descending movement of the ascending / descending member for clutching the catching piece in the fixing groove of the gas container through the rotating force of the rotating lever So,

Not only can the gas torch be easily fastened to the gas container, but also the coupling force between the adapter and the lifting body is lowered even if the fastening is repeatedly performed for a long period of time to prevent safety accidents due to gas leakage It can be used conveniently.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view of a main portion of a gas torch according to the present invention; Fig.
3 is an external perspective view of the main part of the gas torch according to the present invention.
4 is a projection view of a gas torch according to the present invention.
5 is a view showing components of a gas torch according to the present invention, respectively.
6 is a sample photograph of a gas torch according to the present invention.
7 is a view for explaining tightening of a gas torch according to the present invention.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

 In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

In describing the gas torch with the liquefied gas fuel leakage preventing means according to the present invention, when it is specified for the sake of convenience for the sake of convenience by referring to the rough direction reference with reference to Fig. 1, The upper, lower, left, and right sides are determined as they are.

In the description related to the rotation lever shown in [D] of Fig. 6, the state shown in the left side plan view is referred to as OFF, and the state shown in the clockwise direction The state rotated 180 degrees is specified as the ON state, and the outer direction is determined with the central axis portion inside.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a gas torch including a liquefied gas fuel leakage preventing device according to the present invention will be described with reference to the accompanying drawings.

First, as shown in Figs. 1 to 3, a gas torch according to the present invention

An adapter 10 which is fastened to the gas container B;

A body 50 connected to the adapter 10 and having gas communication passages 51 and 56 penetrated therethrough; And

A nozzle 60 connected to the gas communication passages 51 and 56 of the body 50 and having an injection port 65 through which a flame is injected; And

Preventing means formed on the gas passage to prevent leakage of the liquefied gas fuel; , ≪ / RTI >

The liquefied gas fuel leakage preventing means is constituted by one or more gasifying portions (53) (57) provided on the gas communication passages (51) and (56)

The vaporizing portion includes a wide portion 53A having a front end and a narrow portion 53B having a through hole 53c connected to the wide portion and having a reduced cross sectional area of the passage.

The wide section 53A of the vaporizing section 53 is formed with a wide section 53a which is larger in cross section than the cross section of the wide section at the front end.

As shown in Fig. 7, the gas container (B) is a conventional small gas container (B) called a so-called butane gas and has a cylindrical shape. The gas container is compressed and stored in a liquefied state, The fuel is discharged to the outside of the container while being converted into the vaporized state while being in contact with the outside air at room temperature.

The method of discharging the gaseous fuel is performed through a discharge nozzle 1 formed in the head of the vessel, and the discharge nozzle is opened by being press-fitted into the vessel to discharge the fuel.

A skirt portion formed around the head portion is formed, and a fixing groove 5 is formed on the inner circumferential surface of the skirt portion to realize engagement with another flame generator.

When used in combination with a flame generator, the liquefied gas fuel can be discharged to the outside of the vessel without being completely vaporized. In this case, the liquefied gas fuel is not completely burned and causes no uniform flame.

In order to prevent leakage of the liquefied gas fuel, a discharge pipe (not shown) connected to the discharge nozzle is installed inside the container so as to be folded in one direction. In order to visually confirm the direction in which the discharge pipe is bent, A guide groove 3 is formed.

The user can insert the guide protrusion 16 of the flame generating device into the guide groove 3 so that the bent portion of the discharge pipe is maintained in the opposite direction to the gravity force, So that the guide protrusions 16 corresponding to the guide grooves 3 are usually formed in all the flame generating devices.

First, the present invention relates to a gas torch which is combined with the above-mentioned ordinary small gas container (commonly referred to as butane gas) to generate a flame by igniting a flame,

As shown in Figs. 1 to 4, a body 50 having communication passages 51 and 56 connected to the gas container B and to which gas is fed; And

And a coupling means including an adapter (10) connecting the body (50) and the gas container (B).

The body (50) is made of stainless steel or iron and has a structure capable of withstanding a high temperature, and is housed in a housing. The housing (H) is formed of a plastic synthetic resin to secure heat insulation.

It is preferable that the housing H is brought into contact with the body 50 by communicating outside air at room temperature so as to smoothly vaporize the gas fuel on the gas communication passage.

The body 50 has a first body portion 50A through which a first gas communication passage 51 communicating with the adapter 10 is connected and a nozzle 60 through which a flame is generated, A second body portion 50B having a second gas passage 56 communicating with the first gas passage 51 and a second body portion 50B formed between the first body portion 50A and the second body portion 50B, (50C) through which an intermediate passage (50Ca) having gas discharge amount regulating means for regulating the amount of gaseous fuel discharged from the communication passage (51) to the second gas communication passage (56) .

A mounting portion 50Cb is mounted on the outer surface of the body 50, particularly, the middle body portion 50C, on which spark ignition means for spark ignition is mounted.

The spark ignition means is a one-touch spark ignition device used in a known lighter or the like. The spark is generated to ignite the spark, and the gas is ignited by the ignited spark to generate a flame.

The spark generated by the spark ignition means for the gaseous fuel combustion in the vaporized state is preferably generated at the end portion of the nozzle 60 connected to the body 50 (the injection port of the nozzle 60)

Although not shown in the drawing, a coupling portion is formed at one side of the spark ignition means mounting portion 50Cb to connect the conductive wires for spark formation. The conductive wires are connected to the nozzle 60, .

The body 50 is constructed such that the body portions 50A, 50B and 50C are mutually connected in a similar shape and the first and second gas communication passages 51 and 56 are connected to the intermediate communication passage 50Ca, and the intermediate passage 50Ca is provided with regulating means 49 (see FIG. 1) for regulating the gas discharge amount.

The adjusting means operates through the rotary lever 40 located at the end of the middle body portion 50C, and related matters will be described later in detail.

In the present invention, the liquefied gas fuel leakage preventing means is provided to introduce the liquefied gas fuel leakage preventing means for displacing the passage cross-sectional area of the gas communication passage formed in the body (50), and the gas torch can be lifted upside down It is possible to prevent incomplete oxidation or sudden amplification of the flame intensity due to leaking of the liquefied fuel, thereby enhancing the user's stability of use and efficiency of operation.

In order to achieve this, one or more of the vaporizing units functioning as the liquefied gas fuel leakage preventing unit is provided in the body to prevent leakage of the liquefied gas fuel,

As described above, the body of the present invention is composed of the first and second gas communication passages, and all of the gasification portions can be provided in the gas communication passages. Therefore, for convenience of explanation, The first vaporizing section 53 and the second vaporizing section 57 will be described separately.

4, the first body portion 50A is connected to the adapter 10 (see FIG. 3) and has a first gas communication passage 51. The first gas communication passage 51 is connected to the first body portion 50A. The first gas passage 51 includes a first widened portion 53A, a first vaporizing portion 53 and a backlight width portion 54. The first gas passage 51 includes a gas fuel B supplied from the gas container B connected to the adapter 10, The flow rate and the flow velocity can be controlled to prevent the vaporized gas from being liquefied again.

The first widened portion 53A of the body 50 is formed of first and second wide tubes 53a and 53b so that the liquefied gas in the gas vessel B is vaporized and supplied primarily, And air is preheated.

The first widened portion 53A interrupts the partially vaporized liquefied gas so that the temperature of the inside of the body 50 rises or the vaporized gas escapes, ) Is turned upside down or shaking hardly, so that it can function as a primary function to inject uniform gas.

Also, the first wide-width tube 53a of the first wide-width portion discharges the gas to the second wide-width tube 53b having a relatively small cross-sectional area, thereby increasing the gas flow rate at the second wide-width tube 53b. The gas moving at the increased velocity is placed in a state immediately before the first vaporizing section 53 is firstly sprayed.

Next, the first vaporizing part 53 of the body 50 includes a first narrow part 53B in which the cross-sectional area of the passage is reduced rapidly, so that the introduced vapor can be rapidly injected by a narrow cross- The width portion 53B is formed with a first through hole 53b having a relatively small cross-sectional area with respect to the middle point.

Therefore, the gas is rapidly injected by the first through-hole 53b to provide a space for secondary preheating so that the injected gaseous gas can be vaporized at a normal temperature, and at the same time, the gas flow rate and flow rate are controlled And is moved to the backlight width portion 54, which is possible.

In addition, since the first vaporizing portion 53 of the body 50 has the first narrow portion 53B whose cross-sectional area is reduced rapidly, gas gas causing a vortex phenomenon is concentrated on the first through hole 53b formed at the center .

Also, the vortex phenomenon can be prevented as much as possible by the first narrow portion 53B of the first vaporizing portion 53 of the body 50, and the gas that has been preheated at the first time can be quickly .

It is preferable that the first through hole 53b of the first vaporizing portion is 0.25 to 0.35 mm.

The first through-holes 53b are provided to prevent the vortex generated by the first narrow portions 53B as much as possible. In addition, Lt; / RTI >

In this case, the plurality of first through holes 53b are formed by dividing one first through hole 53b by 1 / n so as not to interfere with the sectional area of the gas discharged from the one first through hole 53b .

The first gasification unit 53 may be formed integrally with the first gas communication passage 51. However, since the first gasification unit 53 can be easily combined with the conventional gas torch,

It is preferable that the first vaporizing member in which the first wide portion 53A and the first narrow portion 53B are formed is inserted into the first gas communication passage 51. [

The back light width portion 54 of the first gas communication path 51 is provided as a third wide tube 54A so that the gas gas injected from the first vaporizing portion 53 is supplied to the first vaporizing portion 53A, And communicates with the third wide tube 54A, which is relatively larger than the third wide tube 54A.

The third wide tube 54A of the rear light width portion 54 is formed to have enough space to prevent the gas injected from the first vaporizing portion 53 from liquefying again and to preheat the gas, The gas supply can be stably maintained.

The upper portion of the third wide pipe 54A is provided with a fourth narrowing pipe 54B connected to the middle passage 50Ca, and a sloping funnel 54A is disposed at the center so that the flow velocity of the moving gas is gradually increased. .

The fourth narrowing tube 54B of the backlight width part 54 is formed of a tube having a smaller cross sectional area than the third wide tube 54A. The fourth narrowing pipe 54B can rapidly move the gas while maintaining the flow rate of the gas supplied from the third wide pipe 54A.

Further, the fourth narrowing pipe 54B is formed of a tube made of stainless steel or steel having high heat resistance, and is preferably constructed so as not to be easily damaged or deformed due to its high heat resistance and durability. The gaseous fuel passing through the fourth narrowing pipe 54B is transferred to the second gas passage 56 of the second body portion 50B through the intermediate passage 50Ca whose flow rate of the gas is regulated.

It is possible to provide a sufficient space and time for preheating the fourth narrowing pipe 54B through the intermediate passage 50Ca so that the gas is not reduced to the liquefied gas again while the gas is moving so that the liquefied fuel is prevented from leaking .

4, the second body portion 50B includes a second gas communication passage 56 having a second vaporizing portion 57. The second gas communication passage 56 includes a second gasifying portion 57,

The second gas communication passage 56 includes a second wide portion 57A and a second vaporizing portion 57 having a second narrow portion 57B. A fifth wide tube 58 is formed at the front end of the second wide portion 57A to control the flow rate and the flow rate before the gas supplied from the first gas communication passage 51 is injected.

The fifth wide pipe 58 is formed larger than the cross sectional area of the front end portion of the second gas communication path 56 communicated with the intermediate communication path 50Ca to reduce the flow velocity and provide a space capable of receiving a sufficient flow rate The amount of gas to be injected can be secured.

The second wide portion 57A is equal to or larger than the cross sectional area of the second wide tube 53b and smaller than the fifth wide tube 58 to increase the gas flow rate.

Next, the second gasification part 57 of the second gas communication path 56 includes a second narrow part 57B in which the cross-sectional area of the passage is drastically reduced like the above-described first vaporization part 53, The vaporized gas can be rapidly injected by the rapidly narrowing cross-sectional area.

The second narrow portion 57B of the second gas communication passage 56 is formed with a second through hole 57b having a relatively small cross sectional area with respect to the middle point.

The second through hole 57b of the second vaporization part 57 is preferably formed to be 0.25 to 0.36 mm.

It is preferable that the second vaporizing portion 57 also has a configuration in which the second vaporizing member is inserted into the second gas communication passage 56 with the configuration of the first vaporizing portion.

5, a third gas communication passage 64 formed in the nozzle 60 coupled to the second body portion 50B and communicated with the second gas communication passage 56 is formed in a cylindrical shape, The seventh wide tube (64A) is provided at the front end so that the gas emitted from the second vaporizing part (57) can be uniformly jetted,

The second gas communication path 56 having a narrowed cross-sectional area after the seventh wide-width pipe 64A so as to concentrate the gas ejection direction toward the jetting port 65 of the nozzle 60 has a cross-sectional area wider toward the jetting port 65 All.

On the other hand, the nozzle 60 may be made of bronze, stainless steel, or the like, which has high heat resistance because the gas directly injected is in contact with the flame.

The nozzle (60) includes a cylindrical injection port (65) at which a large thermal power is generated by directly abutting with the outside air at the end of the gas discharge. The jetting port 65 is made of a material having high heat resistance as described above.

In addition, the injection port 65 can be deformed into various shapes, for example, it becomes narrower toward the distal end portion, and can perform an operation such as welding.

The nozzle 60 has a shape of a long conical shape without collecting the spreading of the gas because the inner tube has a predetermined inclination and finally has a radial shape. The nozzle 60 has a constant inclination, Lt; / RTI >

An injection port 65 is provided at an end of the radial nozzle 60. The injection port 65 may be connected to an ignition means to start a flame.

The ignition means may be directly connected to the injection port, but may be provided at a portion other than the nozzle 60 through which the gas is injected.

As shown in FIG. 4, the adapter 10 is a fastening means for coupling the body 50 and the gas container B of the present invention. The adapter 10 includes a body 11 coupled to the first body portion 50A, , And a skirt (15) formed around the body (11).

A receiving portion 12 for receiving the discharge nozzle 1 of the gas container B is formed at the center of the body 11 and a gas communication And an insertion hole 12A through which the discharge nozzle 60 is inserted in communication with the passage 51 is provided.

The discharge nozzle 1 of the gas container B is inserted into the insertion hole 12A so as to be press-fitted into the container to discharge the gas, and the gas is discharged through the discharge port of the nozzle 60 via the gas- Is ignited and burned with a flame.

The adapter 10 is formed with a guide protrusion 16 inserted into the guide groove 3 provided in the gas container B to the skirt 15 so that the skirt 15 is inserted into the gas container B to prevent leakage of the gaseous fuel.

The body 11 is provided with a latching piece 13 protruding from the gas container B in the coupling direction and fastened to the fixing groove 5 (see FIG. 7)

A stopping protrusion 13A protruding outward is provided at the end of the catching piece 13 so that the catching protrusion 13A is inserted into the fixing groove 5 of the gas container B as the catching piece 13 is opened The torch and the gas container B are fastened together.

It is preferable that a plurality of the engaging pieces 13 are provided for the purpose of securing the fastening. In order to secure safety and ease of manufacture, the present invention is characterized in that the guide grooves 3 are arranged in three directions .

6) of the lifting body 20 (see [B] in FIG. 6) in the position inward direction corresponding to the engaging piece 13, as shown in [A] Is guided to move up and down.

3, a guide cutout portion 50b is formed in the receiving portion 50a of the second body portion 50B so that the pushing piece 21 can pass through the guide hole 14 .

As shown in [B] of FIG. 6, the lifting body 20 has three pushing pieces 21 arranged in a circular shape so that the first body portion 50A of the body 50 is inserted And is lifted and lowered along the first body portion 50A.

The ascending / descending movement of the ascending / descending body 20 is performed by the rotation of the rotating lever 40 provided on the intermediate body 50C,

To this end, the fastening means of the present invention includes a link member 30 (see [C] in FIG. 6) for converting the rotational force of the rotary lever 40 into upward and downward movement of the lifting body 20.

The link member 30 is formed of the two link members 31 because the lifting member 20 is wrapped around the first body portion 50A as shown in [C] of FIGS. 3 and 6, Is connected to the switching part (22) of the lifting body (20) while enclosing the first body part (50A).

The link member 30 is formed at one end of the link member 30 so that the switching unit 22 of the ascending / descending member 20 is rotatable,

The rotation shaft 59 of the body 50 is coupled to the rotation hole 33 formed at the center to induce the ascending / descending movement of the ascending / descending body 20 through seesaw motion.

When the link member 30 performs a seesaw motion about the rotary shaft 59, the trajectory of one end portion (connection portion with the switching portion 22 of the ascending / descending member 20)

Since the switching portion 22 of the ascending / descending member 20 moves up and down in the vertical direction,

In order to prevent the members from being damaged according to the displacement of the mutual motion locus,

The switching unit 22 is provided with a pivot shaft 23 and the pivot shaft 23 is coupled to one end of the link member 30 so that the pivot shaft 32 can be displaced according to the movement locus. Is formed to have a predetermined length along the longitudinal direction of the link member (30).

When the other end portion of the link member 30 is raised, the one end portion of the link member 30 is lowered and the switching member 22 is pressed downward to lower the lifting member 20, So that the fastening of the torch and the gas container B is completed.

3 and 6, the rotation lever 40 of the present invention rotates on the other side of the link member 30 in accordance with the rotation of the link member 30, And circular protrusions (42) having elliptical contact portions (43) and (44) for displacing the height position while the end portions are in contact with each other as inner side surfaces.

6, the circular protrusion 42 of the rotary lever 40 is formed at the other side end of the link member 30 (hereinafter referred to as " 34) are in contact with each other,

The distance between the elliptical contact portions 43 and 44 and the central axis of the rotary lever 40 is gradually narrowed in the opposite direction of rotation,

The distance between the center axis and the elliptic contact portion 43 to which the link member 30 contacts in the OFF state of the rotation lever 40 is D1,

When the distance between the center of gravity of the elliptical contact portion 44 and the center axis of the link member 30 is D2 in the ON state of the rotary lever 40,

As the rotation lever 40 rotates from the OFF state to the ON state, the distance relationship of D1 > D2 is established,

3, the height position of the end portion of the contact portion 34 (see [C] in FIG. 6) of the link member 30 is raised in accordance with the rotation of the rotation lever to perform a seesaw motion of the link member 30 Respectively.

Further, a reinforcing bar 35 for preventing breakage is further provided on the bottom surface of the contact portion 34 of the link member 30.

As shown in [D] of FIG. 6, the rotary lever 40 is formed with a handle 41 that a user can grasp and rotate,

The circular protrusion 42 has a circular inclined surface portion 45 whose height is displaced on the upper surface orthogonal to the elliptical contact portions 43 and 44.

That is, the circular slope portion 45 has one low-height portion and another high-height portion,

The rotary lever 40 rotates and the ignition projection 46 located at the distal end portion in the high-level portion in the ON state operates the switch of the spark ignition means (not shown) mounted on the one-side mounting portion 50Cb of the body 50 The spark is generated in a state in which the gas is communicated after the fastening of the torch is completed, and a flame is generated.

As described above, the spark ignition means is a known spark generating device that ignites a spark while generating a spark when the switch is pressed. When the rotary lever 40 is rotated from the ON state to the end, The protrusion 46 operates the switch to generate a flame to generate a flame through combustion of the gas.

The central axis of the rotation lever 40 is connected to the gas discharge amount adjusting means 49 (see FIG. 2) to adjust the discharge amount of the gas in the ON state of the rotation lever 40. So that the intensity of the flame can be controlled by rotating the switch in the direction opposite to the ON rotation after the ignition.

The gas discharge amount regulating means (flame regulating means) is a means used in a known gas torch and can control the gas flow rate by opening and closing the passage of the intermediate passage 50Ca of the intermediate body portion 50C according to the rotation.

The casing 62 surrounding the nozzle 60 includes a first protection pipe 66 surrounding the injection port 65 and a second protection pipe 67 surrounding the first protection pipe 66.

The first protection pipe 66 is provided with a cylindrical pipe so as to surround the injection port 65 directly injected and to uniformly collect the flames to be radiated.

The first protective pipe 66 is in direct contact with the flame emitted from the injection port 65 to prevent the second protective pipe 67 from being rapidly oxidized and to protect the heat received by the second protective pipe 67 primarily The temperature of the outer surface of the second protective pipe 67 directly radiating heat to the outside can be lowered to prevent the user from directly touching the second protective pipe 67 and wearing a large image.

The second protective pipe 67 is formed of a cylindrical tube which surrounds the first protection pipe 66 and a part of the ejection port 65 of the nozzle 60 in a spaced manner and can be integrally formed with the casing 62 have.

The second protective pipe 67 prevents the temperature of the flame radiated through the first protection pipe 66 from being mixed with the outside air in an unprotected manner and is mixed with the appropriate air so that the first protective pipe 66 is heated Can be stably emitted.

For example, the thermal power discharge temperature composed only of the first protective pipe 66 without the second protective pipe 67 is about 100 ° C higher than the thermal power release temperature composed of the second protective pipe 67 and the first protective pipe 66 .

While the present invention has been described with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto, and various modifications, alterations, and substitutions can be made by those skilled in the art Such modifications, alterations, and substitutions are to be construed as within the scope of the present invention.

B: Gas container 1: Discharge nozzle
3: Guide groove 5: Fixing groove
10: Adapter 11: Body
12: accommodating portion 13:
14: guide hole 15: skirt
16: Guide protrusion
20: lifting body 21:
22: switching portion 23:
30: link member 31: link powder
32: Revolving hole 33:
34:
40: rotation lever 41: handle
42: circular protrusion 43: elliptical contact
45: circular inclined portion 46: ignition projection
50: body 50A: first body part
50B: second body part 50C: middle body part
50Ca: intermediate communication path 50Cb: mounting part
51: first gas communication path 53: first gasification section
53A: first wide portion 53B: first wide portion
53a: first wide tube 53b: second wide tube
53c: first through hole 54:
54A: third wide tube 54B: fourth narrow tube
56: second gas communication path 57: second gasification section
57A: second wide portion 57B: second narrow portion
57b: second through hole 58: fifth wide tube
60: nozzle 65: nozzle
66: First Protection Shop 67: No. 2 Storage

Claims (4)

An adapter coupled to the gas container;
A body connected to the adapter and having a gas communication passage penetrated therethrough; And
A nozzle connected to the gas passageway of the body and having an injection port through which a flame is injected; And
Preventing means formed on the gas passage to prevent leakage of the liquefied gas fuel; , ≪ / RTI >
The liquefied gas fuel leakage preventing means
And one or more vaporizing portions provided on the gas passage so that the sectional area of the passage decreases rapidly. The method according to claim 1,
Wherein the vaporizing portion comprises a wide portion having a front end and a narrow portion having a penetrating hole connected to the wide portion and having a reduced cross sectional area of the passage. 3. The method of claim 2,
Characterized in that the wide portion of the vaporizing portion is formed with a wide tube having a larger cross-sectional area than the cross-sectional area of the wide portion at the front end thereof. 4. The method according to any one of claims 1 to 3,
Wherein the nozzle comprises a first protection tube spaced around the injection port and a second protection tube spaced around the first protection tube.

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